Making a regulated humidity chamber
Making a regulated humidity chamber
(OP)
This forum seems the closest for this project. I am trying to build a humidity chamber to check various humidity/dew point devices. I was going to build a chamber with two layers of plexiglass. Between the layers I was going to pump in dry compressed air to lower the humidity and that would be allowed to blow into the area in the center. I have a standard that I monitor it with. The thing I need is the same humidity all over the chamber. Would this be the best way, pump it in through small holes in the walls to circulate and lower the humidity in the air? I was also thinking of putting a pan on the bottom covered by a screen that contains salt and water that would keep it normally around 75% rh in the chamber and then the compressed air would fight and lower the humidity. What do you guys think?





RE: Making a regulated humidity chamber
You can't just pump something into a closed chamber and maintain any kind of equilibrium without also taking some out.
;---
You can probably kluge up something with air flowing in a loop through a small dehumidifier and your test chamber. You may have to use a room- size chamber to get the control loop to stabilize.
Mike Halloran
Pembroke Pines, FL, USA
RE: Making a regulated humidity chamber
RE: Making a regulated humidity chamber
The problem I see is that you will have some more work to find data for salts to cover the whole range of r.h.'s at different temperatures.Do not forget that the solutions of salts should be saturated.
m777182
RE: Making a regulated humidity chamber
There is also a large number on the surplus market.
We had several chambers from the following.
http://www
RE: Making a regulated humidity chamber